Narwhals are uniquely vulnerable to climate change due to their specialized habitat dependence and limited geographic range. Individual welfare is increasingly threatened by ice loss and industrial activity.
Climate-driven sea ice loss creates acute and chronic welfare threats for individual narwhals. The disappearance of sea ice removes the refuge from orca predation that narwhals have depended on evolutionarily, exposing them to predation stress and mortality at rates without historical precedent. Ice entrapment events, which occur when sea ice refreezes unexpectedly around feeding narwhals, cause mass suffocation and panic deaths. The extreme cardiovascular stress responses documented in narwhals during disturbance indicate that even moderate human activity causes significant acute physiological harm. Protecting narwhal welfare requires both climate action to preserve Arctic sea ice and strict regulation of industrial activity in narwhal critical habitat.